NOUVEAUX DERIVES D'HYDANTOINES, DE THIOHYDANTOINES, DE PYRIMIDINEDIONES ET DE THIOXOPYRIMIDINONES, LEURS PROCEDES DE PREPARATION ET LEUR APPLICATION A TITRE DE MEDICAMENTS

The invention concerns compounds for treating pathological conditions or diseases wherein one (or several) somatostatin receptors is (are) involved, corresponding to general formula (I) wherein: R1 represents in particular a carbocyclic or heterocyclic aryl radical optionally substituted or a non-aromatic heterocyclic radical optionally substituted; R2 represents H, alkyl or aryl optionally substituted; R3 represents H or -(CH2)p-Z3, Z3 representing in particular alkyl, cycloalkyl, bis-arylalkyl or di-aryalkyl, -Y1-(CH2)p-phenyl-(X1)n, carbocyclic or heterocyclic aryl optionally substituted, a non-aromatic heterocyclic radical optionally substituted, X1, every time it is present, being independently selected in particular among the radicals H, Cl, F, Br, I, CF3, NO2, OH, NH2, CN, N3, -OCF3, alkyl, alkoxy, -S-alkyl, -(CH2)p-NH2, -(CH2)p-NH-alkyl, -(CH2)p-N-dialkyl; Y1 represents O, S, NH or is not present; R4 represents -(CH2)p-Z4, Z4 representing in particular amino, alkylamino, N,N-dialkylamino; R5 represents in particular H or alkyl; X represents O or S; p each time it is present is independently 0 or an integer ranging between 1 and 6; q each time it is present is independently an integer between 1 and 5; n represents 0 or 1; provided that when n represents 0, m represents 1, 2 or 3, and when n represents 1, m represents 0 or 1. L'invention concerne de nouveaux dérivés d'hydantoïnes, de thiohydantoïnes, de pyrimidinediones et de thioxopyrimidinones, leurs procédés de préparation, leur utilisation en tant que médicaments destinés à traiter les états pathologiques ou les maladies dans lesquels un (ou plusieurs) des récepteurs de la somatostatine est (sont) impliqué (s), et des compositions pharmaceutiques les contenant.